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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

M-MSC-derived small extracellular vesicles (sEV) from trained animals presented nephroprotective potential in unilateralureteral obstruction mode

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Luiz, Rafael da Silva [1] ; Rampaso, Rodolfo Rosseto [1] ; Carneiro dos Santos, Alef Aragao [2] ; Convento, Marcia Bastos [1] ; Barbosa, Dulce Aparecida [1] ; da Fonseca, Cassiane Dezoti [1] ; de Oliveira, Andreia Silva [1] ; Caires, Agnaldo [1] ; Furlan, Andrei [1] ; Schor, Nestor [1] ; Borges, Fernanda Teixeira [3]
Total Authors: 11
Affiliation:
[1] Fed Univ Sao Paulo UNIFESP, Dept Med, Nephrol Div, Sao Paulo, SP - Brazil
[2] Cruzeiro do Sul Univ, Interdisciplinary Program Hlth Sci, Inst Phys Act & Sport Sci, Sao Paulo, SP - Brazil
[3] Univ Fed Sao Paulo, Paulista Sch Nursing, Sao Paulo, SP - Brazil
Total Affiliations: 3
Document type: Journal article
Source: Journal of Venomous Animals and Toxins including Tropical Diseases; v. 27, DEC 3 2021.
Web of Science Citations: 0
Abstract

Background: The efficacy of bone marrow mesenchymal stromal cells (BM-MSC) and its extracellular vesicles has been demonstrated for a broad spectrum of indications, including kidney diseases. However, BM-MSC donor characteristics and their potential are not usually considered. Therefore, the present work aims to evaluate the nephroprotective capacity of sEV secreted by BM-MSC from trained rats inunilateral ureteral obstruction (UUO) model. Methods: BM-MSC was characterized by their differentiation potential and immunophenotypic markers. The sEV were isolated by ultracentrifugation and characterized by nanoparticle tracking analysis and western blot. Its miRNA cargo was examined by quantitative PCR analysis for miR-26a, 126a, and 296. Wistar rats were submitted to UUO procedure and concomitantly treated with sEV secreted by BM-MSC from the untrained andtrained rats. The kidney tissue from all groups was evaluated for fibrosis mediators (transforming growth factor beta1 and collagen), CD34-angiogenesis marker, and hypoxia-inducible factor 1 alpha (HIF-1 alpha). Results: Treadmill training stimulated in BM-MSC the production of sEV loaded with pro-angiogenic miR-296. The treatment with this sEVin UUO-rats was able to attenuate collagen accumulation and increase CD34 and HIF-1 alpha in the kidney tissue when compared to untrained ones. Tubular proximal cells under hypoxia and exposed to BM-MSC sEV demonstrate accumulation in HIF-1 alpha and NFR-2 (nuclear factor erythroid 2-related factor 2), possibly to mediate the response to hypoxia and oxidative stress, under these conditions. Conclusion: The BM-MSC sEV from trained animals presented an increased nephroprotective potential compared to untrained vesicles by carrying 296-angiomiR and contributing to angiogenesis in UUO model. (AU)

FAPESP's process: 15/23345-9 - MicroRNAs, extracellular vesicles and stem cells: physiology, pathophysiological role and therapeutic potential in renal diseases
Grantee:Mirian Aparecida Boim
Support Opportunities: Research Projects - Thematic Grants